<template>
      <div class="app-container">
        <h2 style="text-align: center;">发布新课程</h2>
        <el-steps :active="3" process-status="wait" align-center style="margin-bottom: 40px;">
          <el-step title="填写课程基本信息"/>
          <el-step title="创建课程大纲"/>
          <el-step title="发布课程"/>
        </el-steps>
        <div class="ccInfo">
          <img :src="coursePublish.cover">
          <div class="main">
            <h2>{{ coursePublish.title }}</h2>
            <p class="gray"><span>共{{ coursePublish.lessonNum }}课时</span></p>
            <p><span>所属分类：{{ coursePublish.subjectLevelOne }} — {{ coursePublish.subjectLevelTwo }}</span></p>
            <p>课程讲师：{{ coursePublish.teacherName }}</p>
            <h3 class="red">￥{{ coursePublish.price }}</h3>
          </div>
        </div>
        <div>
          <el-button @click="previous">返回修改</el-button>
          <el-button :disabled="saveBtnDisabled" type="primary" @click="publish">发布课程</el-button>
        </div>
      </div>
    </template>
<script>
    import { findInfoById,publishCourse } from '@/api/publish';
    export default{
        data(){
            return{
                courseId:"",
                saveBtnDisabled:false,
                coursePublish:{}
            }
        },
        created(){
            this.init()
        },
        methods:{
            init(){
                if(this.$route.params&&this.$route.params.id){
                    this.courseId=this.$route.params.id
                    this.findInfoByCourseId()
                }
            },
            findInfoByCourseId(){
                findInfoById(this.courseId).then(res=>{
                    this.coursePublish=res.data.items;
                })
            },
            previous(){
                this.$router.push({path:'/course/chapter/'+this.courseId})
            },
            publish(){
                publishCourse(this.courseId).then(res=>{
                    if(res.success){
                        this.$message({
                            type:"success",
                            message:"发布成功"
                        })
                        this.$router.push({path:'/course/index'})
                    }
                    
                })
            }
        }
    }
</script>

<style scoped>
    .ccInfo {
        background: #f5f5f5;
        padding: 20px;
        overflow: hidden;
        border: 1px dashed #DDD;
        margin-bottom: 40px;
        position: relative;
    }
    .ccInfo img {
        background: #d6d6d6;
        width: 500px;
        height: 278px;
        display: block;
        float: left;
        border: none;
    }
    .ccInfo .main {
        margin-left: 520px;
    }
    .ccInfo .main h2 {
        font-size: 28px;
        margin-bottom: 30px;
        line-height: 1;
        font-weight: normal;
    }
    .ccInfo .main p {
        margin-bottom: 10px;
        word-wrap: break-word;
        line-height: 24px;
        max-height: 48px;
        overflow: hidden;
    }
    .ccInfo .main p {
        margin-bottom: 10px;
        word-wrap: break-word;
        line-height: 24px;
        max-height: 48px;
        overflow: hidden;
    }
    .ccInfo .main h3 {
        left: 540px;
        bottom: 20px;
        line-height: 1;
        font-size: 28px;
        color: #d32f24;
        font-weight: normal;
        position: absolute;
    }
</style>